01 Ezhova Olga

Olga V. Ezhova

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Scientific interests: morphology, microscopic anatomy, fine structure of the deuterostomes; comparative anatomy and 3D-reconstruction of Echinodermata, Hemichordata, and Chordata; evolutionary transformations of Deuterostomia, phylogenetic relationships between different classes of deuterostome animals; "Vertebrata - are such Invertebrata".

PhD thesis: "Microscopic anatomy and fine structure of the skeleton-heart-kidney complex of Saccoglossus mereschkowskii, Wagner, 1885 (Hemichordata, Enteropneusta)" (defended in 2008 under the guidance of Professor V.V. Malakhov).

Publications:

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Ezhova 2020 2        Ezhova O.V., Malakhov V.V. 2020. Axial complex of Crinoidea: comparison with other Ambulacraria // Journal of Morphology. 2020. 281(11):1456-1475.
DOI: 10.1002/jmor.21259
Ezhova 2020 1        Ezhova O.V., Malakhov V.V. 2020. Is the gill skeleton of acorn worms (Enteropneusta) similar to the gill skeleton of Amphioxus (Cephalochordata)? // Doklady Biological Sciences. 494:232-235.
DOI: 10.31857/S2686738920050121

Kremenetskaia et al 2019 

      Kremenetskaia A., Ezhova O., Drozdov A.L., Rybakova E., Gebruk A. 2020. On the Reproduction of two deep-sea Arctic holothurians, Elpidia heckeri and Kolga hyalina (Holothuroidea: Elpidiidae) // Invertebrate Reproduction and Development. 64(1):33-47.
DOI: 10.1080/07924259.2019.1692915
Lukinykh 2018       

Lukinykh A.I., Ezhova O.V., Krylenko S.V., Galkin S.V., Gebruk A.V., Malakhov V.V. 2018. Discovery of Trunk Coelomoducts in Hemichordata // Doklady Biological Sciences. 483(1):228-230.
DOI: 10.1134/S0012496618060042

 Ezhova 2018 1       Ezhova O.V., Malakhov V.V., Egorova E.A. 2018. Axial complex and associated structures of the sea urchin Strongylocentrotus pallidus (Sars, G.O. 1871) (Echinodermata: Echinoidea) // Journal of Morphology. 279(6):792-808.
DOI: 10.1002/jmor.20811
 Ezhova 2017 1       Ezhova O.V., Ershova N.A., Malakhov V.V. 2017. Microscopic anatomy of the axial complex and associated structures in the sea cucumber Chiridota laevis Fabricius, 1780 (Echinodermata, Holothuroidea) // Zoomorphology. 136(2):205-217.
DOI: 10.1007/s00435-016-0341-8
 Ezhova 2016 2       Ezhova O.V., Malakhov V.V. 2016. How did gill slits appear? // Priroda. 10:9-15. [in Russian]
 Ezhova 2016 1       Ezhova O.V., Malakhov V.V. 2016. Do echinoderms have kidneys? // Priroda. 7:22-29. [in Russian]
 Ezhova 2016 3       Ezhova O.V., Malakhov V.V., Martynov A.V. 2016. Madreporites of Ophiuroidea: are they phylogenetically informative? // Zoomorphology. 135(3):333-350.
DOI: 10.1007/s00435-016-0315-x
 Ezhova 2016 8       Ezhova O.V., Egorova E.A., Malakhov V.V. 2016. Ultrastructural evidence of the excretory function in the asteroid axial organ (Asteroidea, Echinodermata) // Doklady Biological Sciences. 468:129-132.
DOI: 10.7868/S0869565216160271
 Ezhova 2016 9       Ezhova O.V., Egorova E.A., Malakhov V.V. 2016. Transformations of the ophiuroid axial complex as a result of the shifting of the madreporite to the oral side // Biology Bulletin. 43(6):494-502.
DOI: 10.1134/S1062359016060091
 Ezhova 2015 2       Ezhova O.V., Malakhov V.V. 2015. The nephridial hypothesis of the gill slit origin // Journal of Experimental Zoology Part B (Molecular and Developmental Evolution).  324(8):647-652.
DOI: 10.1002/jez.b.22645
 Ezhova 2015 1       Ezhova O.V., Lavrova E.A., Ershova N.A., Malakhov V.V. 2015. Microscopic anatomy of the axial complex and associated structures in the brittle star Ophiura robusta Ayres, 1854 (Echinodermata, Ophiuroidea) // Zoomorphology. 134(2):247-258.
DOI: 10.1007/s00435-014-0251-6
 Ezhova 2014 3       Ezhova O.V., Lavrova E.A., Malakhov V.V. 2014. The Morphology of the Axial Complex and Associated Structures in Asterozoa (Asteroidea, Echinoidea, Ophiuroidea) // Russian Journal of Marine Biology. 40(3):153-164.
DOI: 10.1134/S1063074014030043
 Ezhova 2013 2       Ezhova O.V., Malakhov V.V. 2013. About Saccoglossus, zoologists, and inverted chordates // Priroda. 2:49-56. [in Russian]
 Ezhova 2013 3       Ezhova O.V., Lavrova E.A., Malakhov V.V. 2013. Microscopic Anatomy of the of the Axial Complex in the Starfish Asterias rubens (Echinodermata, Asteroidea) // Biology Bulletin. 40(8):643-653.
DOI: 10.1134/S1062359013080049
 Ezhova 2010 5       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 1. Stalk Skeleton // Biology Bulletin. 37(8):795-806.
DOI: 10.1134/S1062359010080042
 Ezhova 2010 2       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 2. Buccal Diverticulum // Zoologicheskii Zhurnal. 89(6):643-662. [in Russian]
 Ezhova 2010 3       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 3. Heart and Blood Vessels // Zoologicheskii Zhurnal. 89(7):771-785. [in Russian]
 Ezhova 2010 4       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 4. Heart-kidney, Proboscis Coelom, and Proboscis Coelomoduct // Zoologicheskii Zhurnal. 89(8):899-923. [in Russian]
 Ezhova 2009       Ezhova O.V., Malakhov V.V. 2009. Three-dimensional structure of the Skeleton and Buccal Diverticulum of an acorn worm Saccoglossus mereschkowskii Wagner, 1885 (Hemichordata, Enteropneusta) // Invertebrate Zoology. 6(2):103-116.
 Ezhova 2007 2       Ezhova O.V., Malakhov V.V. 2007. The Morphology of the Skeletal Element of Saccoglossus mereschkowskii (Hemichordata, Enteropneusta) // Doklady Biological Sciences. 417: 439-441.
DOI: 10.1134/S0012496607060087
 Ezhova 2007 1       Ezhova O.V., Malakhov V.V. 2007. Musculo-Epithelial Cells in the Intestine of the Representative of Hemichordates Saccoglossus mereschkowskii (Hemichordata, Enteropneusta) // Doklady Biological Sciences. 414: 216-218.
DOI: 10.1134/S0012496607030131

 

Conferences:

Ezhova 2008

      Ezhova O.V., Malakhov V.V. 2008. Skeleton and buccal diverticulum of Saccoglossus mereschkowskii (Enteropneusta) // The First International Congress on Invertebrate Morphology. Copenhagen. P. 108.         

Ezhova 2014 2

      Ezhova O.V., Malakhov V.V. 2014. The branchial apparatus of Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): nephridial hypothesis of the gill slit origin // The Third International Congress on Invertebrate Morphology. Berlin. P. 77.        

Ezhova 2015 3

      Ezhova O.V., Egorova E.A., Malakhov V.V. 2015. Axial complex of Ophiura robusta Ayres, 1854 (Echinodermata, Ophiuroidea): microscopic anatomy reveals the evolutionary way // The Second Russian Conferens on Echinodermata. Moscow. Paleontological Institute RAS. P. 14-15.        

Ezhova 2016 6

      Ezhova O.V., Martynov A.V., Malakhov V.V. 2016. Madreporites in classis Ophiuroidea: morphology and evolution // Echinoderm Axial Complex and related issues. Moscow. Paleontological Institute RAS.        

Ezhova 2016 7

      Ezhova O.V., Malakhov V.V. 2016. New Hypothesis of the Gill Slits Origin // Lomonosov Readings. Moscow. Lomonosov MSU.        

Ezhova 2017 2

      Ezhova O.V., Malakhov V.V. 2017. Metamerism in the Echinodermata // The Fourth International Congress on Invertebrate Morphology. Moscow. P. 11.        

Ezhova 2017 3

      Ezhova O.V., Malakhov V.V. 2017. Coelom metamerism of Echinodermata // Morphogenesis in individual and historical development: ontogenesis and formation of biological diversity. Moscow. Paleontological Institute RAS.        

Ezhova 2018 2

      Ezhova O.V., Lukinykh A.I., Galkin S.V., Gebruk A.V., Malakhov V.V. 2018. New data on the anatomy of the deep-sea acorn worms (Hemichordata: Enteropneusta, Torquaratoridae) // "Invertebrate Zoology - New Century". Moscow. Lomonosov MSU.        

 

Научные гранты:

rffi            
  • "Gill slits: a mystery of Deuterostomia", 2020-
  • "Origin of echinoderms" (scientific review), 2020
  • "Origin of echinoderms: morphological evolution within the clade Ambulacralia", 2017-2019
  • "Echinoderm coelomic system: microscopic anatomy and ultrastructure", 2014-2016
  • "The heart-kidney complex in Hemichordata and Echinodermata: structure, origin, importance for the phylogeny of Ambulacralia", 2011-2013
               
rsf            
  • "Scientific revolution in zoomorphology: new methods and approaches in the science and education", 2018-2021